Question

One-fourth of a number added to two- seventh of it gives 135; find the number.

Answer 1

let number equal to X other number equal to 2 by 7 into X equal to 2x by 7 scq 2x by 7 + X equal to 135 INOX by 7 equal to 135 9 X equal to 135 into 7 X equal to 135 into 7 by 9 .